package servlet.LoginServlets;

import java.io.IOException;
import java.util.ArrayList;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.fasterxml.jackson.databind.ObjectMapper;

import dao.UserDao;
import entity.User;

/**
 * Servlet implementation class GetUserListServlet
 */
@WebServlet("/CheckUserNameServlet")
public class CheckUserNameServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
	
	private UserDao userDao;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public CheckUserNameServlet() {
        super();
        
        userDao = new UserDao();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		response.setContentType("text/html;charset=UTF-8");
		String name = request.getParameter("name");
		
		User user = userDao.findByName(name);
		
		ObjectMapper mapper = new ObjectMapper();
		
		mapper.writeValue(response.getWriter(), user);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}
